McDonald hoping former Rehab CEOs will appear before PAC

Sinn Féin's Mary Lou McDonald says the Public Accounts Committee has not been barred from compelling former Rehab CEOs from attending hearings.

The Committee member's comments come after the Procedures and Privileges Committee made new rules last week, which could prevent PAC from forcing Angela Kerrins and Frank Flannery to take questions.

However, Mary Lou McDonald says the PAC's submission for Ms Kerins and Mr Flannery will be heard later this week.

She says she still hopes the pair will appear before the Committee.

"What they have done so far, as I understand it, is to adopt standing orders, guidelines for witnesses who might be compelled, and so on, in line with the new legislation, which was the right way to go about it," she said.

"And I understand that on Wednesday there will be begin the process of considering our detailed submission."